Fluid-meter.



No. 677,558. Patented luly 2, I90I.

. H. CHRISMAN.

FLUID METER.

(Application led June 20, 1900.) (No Model.)

|s PETERS co.. mcmxurwo.. wAswuaroN, n. c.

UNiTnD STAT-ES i ATENT Fries.

HORACE CHRISMAN, OF WILKINSBURG, PENNSYLVANIA, ASSIGNOR TO THE PITTSBURG METER COMPANY, OF PENNSYLVANIA.

FLUID-METER.

SPECIFCATION forming part of Letters Patent No. 677,558, dated July 2, 1901. Application iiled June 20,1900. Serial No. 20,952. (No model.)

T all whom, t may concern:

Be it known that I, HORACE CHRISMAN, a citizen of the United States, residing at Wilkinsburg, in the county of Allegheny and State of Pennsylvania,have invented new and useful Improvements in Fluid Meters, of which the following is a specification.

My invention relates to fluid-meters; and it has for its object to provide an improved 1o construction whereby the gearing for operating the registering and indicating mechanismY may be readily assembled and whereby the several parts of such mechanism may be maintained in proper cooperative relations. i5 lVith these ends in view I have devised the means shown in the accompanying drawing,

the single figure of which is a central sec# tional view of a complete instrument.

The measuring-chamber 1, in which the zo disk piston 2 is located and operates, may be of usual construction and may be supported by a casing 3, between the two parts 4 and 5 of which it is clamped by means of bolts or screws 6. The top of the part 4 of the casing 3 is provided with studs or pillars 7, on

which is supported the registering mechanism 8, this mechanism being inclosed in a supplemental casing 9, having a sight-paneV in its top, and a hinged protecting-cover ll. 3o The main outlet-passages forrthe water to be measured are connected with suitable pipes by means of spuds 12.

All of the parts thus far described are or may be of usual construction and may be 3; modified from what is shown in any way desiredso long as an operative relation of parts is maintained.

The motion of the piston 2 caused by the flow of water through the measuring-chamber is imparted to the registering mechanism by means of a pin 13, carried by the piston, a power-transmitting device, here shown as a pinion 14, having a shaft 15, provided at its other end with arms 16, against one of which the pin 13 impinges, and a reducingtrain 17, one of the gear-wheels of which meshes with the pinion 14 and the last gearwheel of which is connected to the registering-train by means of a shaft 18 and gear- 5o wheels 19.

The pinion 14 and its shaft 15 are supported by a frame 20, comprising a ring 2l, that has a screw-threaded engagement with the top plate of the measuring-chamber, a plurality of curved arms 22, projecting upward from the ring, and a cylindrical outer end 23, in which is mounted a block 24, the lower end of which is frusto-conicalin form, so as to constitute a bearing for the outer end of the pin 13. This block 24 constitutes a bearing 6o for the pinion-shaft 15.

The open-work structure ofthe supportingframe 20 enables the manufacturer and the user of the meter to readily inspect the moving parts located within it, and thus determine whether such parts are properly adjusted and in 'good working condition. The screw-threaded connection of this part with the measuring-chamber also permits of its ready removal in case repairs are necessary. 7o

The reducing-train of gears 17 is mounted in a two-part framework 25,the upper part 26 of which is supported by the top of the part 4 of the casing 3. The means for supporting the part 26 -consists of a tubular pro- 75 jection 27, which may be an integral part of theV portion 26 and project through an opening/in the top of the part 4, this tubular projection being screw-threaded and having a nut 28 for clamping it into position and a cap 8o 29, the latter coperatin g with the other parts to constitute a stuiiing-box for the shaft 18. The lower portion of the su pporting-frame 25 is fastened to the part 2G by means of screws 30 and has an opening or recess 3l of slightly 85 greater diameter than the external diameter of the part 23, the relation of the parts when assembled being such that the part 23 projects into the recess or opening 3l. This cooperative relation of the parts is such that 9o the meshing of the pinion 14 withvthe coperating gear-wheel of train 17 is assured, and

at the same time the loose lit between the part 23 and the recess 3l provides for a ready assembling of the parts in case the parts4 and 95 5 of the casing and the portion of the measuring-chamber clamped between them do not accurately fit, so as to bring the part 23 and the recess 3l into the exact concentric relation, and also permits of relative movement :oo

of the parts both laterally and longitudinally when suchl movement is rendered necessary by changes in temperature or fluid-pressure.

While I have shown and described my invention as applied to a disk water-meter, I desire it to be understood that the invention .maybe utilized in connection with meters of other varietieswhether employed for measuring liquids or gases and that the illustration and description of specific details of construction are not to be construed as limiting the invention to such details.

I claim as my inventionl. In a fluid-meter, the combination with a power-transmitting member and fluid-actuated driving means therefor, of an outwardlyprojecting bearing for the power-transmitting member, a train of gearing and a frame therefor that is supported independently of and without attachment to said bearing and has an opening into which t-he bearing projects to insure a proper coperative relation between the power-transmitting member and the train of gearing.

2. In a Huid-meter, the combination with a power-transmitting member, and fluid-actuated driving means therefor, of a bea-ringblocl; for the power-transmitting member, a. train of gearing receiving motion from the saidpower-transmitting member and a frame therefor that is supported independently. of and without attachment to said bearing-block and has an opening of greater diameter than the bearing-block into which the latter projects.

3. In a duid-meter, the combination with a power-transmitting member and aiiuid-actuated driving means therefor, of an open-work frame having a cylindrical bearing-block for the power-transmitting member, a train of gearing'receiving motion from said powertransmitting member and a frame therefor that is supported independently of and without attachment to said bearing-block and has a centering-opening into which said bearingblock projects when the parts are assembled in operative relations.

4. In a fluid-meter, the combination with a two-part casing,a measnring-chambei` located in said casing and removably supported by the lower part thereof, a piston in said measuring-chamber, a pinion operated by said pist0n and a train of gearing receiving motion from said pinion, of a bearing-block for the pinion-shaft that is supported by the measuring-chamber and a frame for the train of gearing that is supported by the upper part of the casing and has a centering recess or opening of larger diameter than the bearinglock into which said block projects when the parts are assembled in operative relations.

5. In a fluid-meter, the combination with a measnring-chamber,a two-part separable casing therefor, a piston and gearing operated thereby, of two independent frames for separable portions of said gearing which have a loose-fitting, centering relation to each other and which are respectively supported by the two parts of the casing, one being attached to the corresponding part of the casing and the other to the measuring-chamber.

6. In a fluid-meter, the combination with a fluid-actuated member, a chamber therefor, gearing operated by said member and a twopart casing for said chamber, member-and gearing, of two frames for said gearing which have a loose-fitting, centering relation but are not attached to each other and are respectively supported by one part of the casing and by the measuring-chamber.-

In testimony whereof I have hereunto subscribed my name this 16th day of June,-1900.

HORACE CHRISMAN. Witnesses:

WESLEY G. CARR, BIRNEY HINES. 

